# File lib/phusion_passenger/platform_info/compiler.rb, line 178
        def self.portability_ldflags
                if RUBY_PLATFORM =~ /solaris/
                        result = '-lxnet -lrt -lsocket -lnsl -lpthread'
                else
                        result = '-lpthread'
                end
                flags << ' -lmath' if has_math_library?
                return result
        end